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Auto merge of #3733 - Zoxc:rustc-interface, r=oli-obk

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Use the new rustc interface

Shows the changes required to compile with https://github.com/rust-lang/rust/pull/56732
This commit is contained in:
bors 2019-03-10 14:26:31 +00:00
commit 016d92d6ed
1 changed files with 63 additions and 54 deletions
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117
src/driver.rs
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@ -8,10 +8,11 @@
#[allow(unused_extern_crates)]
extern crate rustc_driver;
#[allow(unused_extern_crates)]
extern crate rustc_interface;
#[allow(unused_extern_crates)]
extern crate rustc_plugin;
use self::rustc_driver::{driver::CompileController, Compilation};
use std::convert::TryInto;
use rustc_interface::interface;
use std::path::Path;
use std::process::{exit, Command};
@ -60,10 +61,62 @@ fn test_arg_value() {
}
#[allow(clippy::too_many_lines)]
struct ClippyCallbacks;
impl rustc_driver::Callbacks for ClippyCallbacks {
fn after_parsing(&mut self, compiler: &interface::Compiler) -> bool {
let sess = compiler.session();
let mut registry = rustc_plugin::registry::Registry::new(
sess,
compiler
.parse()
.expect(
"at this compilation stage \
the crate must be parsed",
)
.peek()
.span,
);
registry.args_hidden = Some(Vec::new());
let conf = clippy_lints::read_conf(&registry);
clippy_lints::register_plugins(&mut registry, &conf);
let rustc_plugin::registry::Registry {
early_lint_passes,
late_lint_passes,
lint_groups,
llvm_passes,
attributes,
..
} = registry;
let mut ls = sess.lint_store.borrow_mut();
for pass in early_lint_passes {
ls.register_early_pass(Some(sess), true, false, pass);
}
for pass in late_lint_passes {
ls.register_late_pass(Some(sess), true, pass);
}
for (name, (to, deprecated_name)) in lint_groups {
ls.register_group(Some(sess), true, name, deprecated_name, to);
}
clippy_lints::register_pre_expansion_lints(sess, &mut ls, &conf);
clippy_lints::register_renamed(&mut ls);
sess.plugin_llvm_passes.borrow_mut().extend(llvm_passes);
sess.plugin_attributes.borrow_mut().extend(attributes);
// Continue execution
true
}
}
pub fn main() {
rustc_driver::init_rustc_env_logger();
exit(
rustc_driver::run(move || {
rustc_driver::report_ices_to_stderr_if_any(move || {
use std::env;
if std::env::args().any(|a| a == "--version" || a == "-V") {
@ -144,58 +197,14 @@ pub fn main() {
}
}
let mut controller = CompileController::basic();
if clippy_enabled {
controller.after_parse.callback = Box::new(move |state| {
let mut registry = rustc_plugin::registry::Registry::new(
state.session,
state
.krate
.as_ref()
.expect(
"at this compilation stage \
the crate must be parsed",
)
.span,
);
registry.args_hidden = Some(Vec::new());
let conf = clippy_lints::read_conf(&registry);
clippy_lints::register_plugins(&mut registry, &conf);
let rustc_plugin::registry::Registry {
early_lint_passes,
late_lint_passes,
lint_groups,
llvm_passes,
attributes,
..
} = registry;
let sess = &state.session;
let mut ls = sess.lint_store.borrow_mut();
for pass in early_lint_passes {
ls.register_early_pass(Some(sess), true, false, pass);
}
for pass in late_lint_passes {
ls.register_late_pass(Some(sess), true, pass);
}
for (name, (to, deprecated_name)) in lint_groups {
ls.register_group(Some(sess), true, name, deprecated_name, to);
}
clippy_lints::register_pre_expansion_lints(sess, &mut ls, &conf);
clippy_lints::register_renamed(&mut ls);
sess.plugin_llvm_passes.borrow_mut().extend(llvm_passes);
sess.plugin_attributes.borrow_mut().extend(attributes);
});
}
controller.compilation_done.stop = Compilation::Stop;
let mut clippy = ClippyCallbacks;
let mut default = rustc_driver::DefaultCallbacks;
let callbacks: &mut (dyn rustc_driver::Callbacks + Send) =
if clippy_enabled { &mut clippy } else { &mut default };
let args = args;
rustc_driver::run_compiler(&args, Box::new(controller), None, None)
rustc_driver::run_compiler(&args, callbacks, None, None)
})
.try_into()
.expect("exit code too large"),
.and_then(|result| result)
.is_err() as i32,
)
}